Organic Chemistry Answers

The number of pi-electrons in benzae is

Each nucleotide consists of three parts. These three parts can be represented diagrammatically, as shown below. Name and briefly describe the key chemical features for each of the '3-parts' of a nucleotide represented by each shape (circle, pentagon, rectangle)? [4 marks]

Write maximum 10-15 line response. 1 mark for correct name of all three parts; and 1 mark x 3 for each of the three descriptions.

How to convert 1-methylcyclohexane into 1,1,2-trimethylcyclohexane. Write the steps.

what are the factors that determine an effective collision ?

The rearrangement in which migrating group migrates without its pair of electron to the electron rich centre is called

side effects of Succinic anhydride

Assignment title: Synthesize succinic anhydride from 90g of the succinic acid. Purify the product. Calculate theoretical yield and percentage yield of the succinic anhydride if actual yield is 47g.

1.Reagents/ Apparatus

2.Procedure (Synthesis and Purification)

3.Uses

4.Precautions

A.Calculation of theoretical Yield and Percentage Yield

B.Draw/ Paste Reflux Condenser and Buchner Funnel

Is it safe to use Succinic anhydride as preservative? If yes what could be the allowed percentage?

Which of the following statements is INCORRECT? (1) H-C≡N is a linear molecule and the bond angle of H-C-N is 180 O (2) Formaldehyde is a trigonal planar molecule with the H-C-H bond angle of 120 O (3) Water is a bent molecule. The H-O-H bond angle is 120 O and the arrangement of the electron pairs on the oxygen atom is tetrahedral. (4) Methane is a tetrahedral molecule with the H-C-H bond angles of 109.5 O 

In the structure shown below, the non zero formal charge are